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ktouch 100% CPU ubuntu 20.04 in a old Pentium Dual E2220

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I'm reusing old pc for a typing course and I've discovered ktouch as a typing coach. In other old pc are working reasonably well but In one old Pentium dual E2220 2,4Gz with 4Ghz of RAM is not working. It's normal ? It's too old?

I'm wondering if its a RAM problem or a graphics one...but htop shows cpu 97-100% using ktouch.
Why mozilla firefox work fine and a typing coach don't? A graphics problem perhaps? Any hint?

I'll post my hw (old!) specs:

Code: Select all
[email protected]:~$ inxi -F
System:    Host: ateneu5-desktop Kernel: 5.4.0-58-generic x86_64 bits: 64 Desktop: Gnome 3.36.4
           Distro: Ubuntu 20.04.1 LTS (Focal Fossa)
Machine:   Type: Desktop Mobo: Intel model: D945GCPE v: AAD97209-203 serial: <superuser/root required> BIOS: Intel
           v: PE94510M.86A.0064.2008.0215.1714 date: 02/15/2008
CPU:       Topology: Dual Core model: Intel Pentium Dual E2220 bits: 64 type: MCP L2 cache: 1024 KiB
           Speed: 1469 MHz min/max: 1200/2400 MHz Core speeds (MHz): 1: 1512 2: 1532
Graphics:  Device-1: Intel 82945G/GZ Integrated Graphics driver: i915 v: kernel
           Display: x11 server: X.Org 1.20.8 driver: i915 resolution: 1680x1050~60Hz
           OpenGL: renderer: Mesa DRI Intel 945G v: 1.4 Mesa 20.0.8
Audio:     Device-1: Intel NM10/ICH7 Family High Definition Audio driver: snd_hda_intel
           Sound Server: ALSA v: k5.4.0-58-generic
Network:   Device-1: Realtek RTL810xE PCI Express Fast Ethernet driver: r8169
           IF: enp1s0 state: down mac: 00:1c:c0:71:5e:17
           Device-2: Realtek RTL8192CU 802.11n WLAN Adapter type: USB driver: rtl8192cu
           IF: wlxe894f6142835 state: up mac: e8:94:f6:14:28:35
Drives:    Local Storage: total: 465.76 GiB used: 9.12 GiB (2.0%)
           ID-1: /dev/sda vendor: Seagate model: ST500DM002-1BD142 size: 465.76 GiB
Partition: ID-1: / size: 456.95 GiB used: 9.12 GiB (2.0%) fs: ext4 dev: /dev/sda5
Sensors:   System Temperatures: cpu: 37.0 C mobo: N/A
           Fan Speeds (RPM): N/A
Info:      Processes: 190 Uptime: 8m Memory: 3.16 GiB used: 1.05 GiB (33.2%) Shell: bash inxi: 3.0.38
Registered Member
Interesting findings:

I'm writing from a raspberry pi 4 (raspberry pi 400) and there ktouch is working without any problems and more fluid than a Pentium Dual core E85xx with 4Gb Ram.

I've tried ubuntu 20.04, lunbuntu 20.04 and kubuntu 20.04 and all flavors of ubuntu are not making ktouch working well in a pc like posted in the thread.

Perhaps is the raspbian version of ktouch. I'll try to test the raspbian version in this kind old pc's and I'll post the results.

Surprised about raspberry and raspbian ...perhaps I'll need to change all old pc's for raspberrys...

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